<template>
  <div class="chart">
    <div class="wrap" :id="'customerChart' + index"></div>
  </div>
</template>
<script>
import { reactive, toRefs, onMounted, watch } from "vue";
import * as echarts from "echarts";
export default {
  props: ["chartObj", "cindex", "x", "y"],
  setup(props) {
    watch(
      () => props.chartObj,
      (newVal, oldVal) => {
        initEchart();
      }
    );
    const state = reactive({
      dateArr: [],
      index: props.cindex,
    });

    function initEchart() {
      let days = [];
      let item = props.chartObj;
      days = item.xAxisData;
      let start = 0;
      if (days.length > 7) {
        start = ((days.length - 7) / days.length) * 100;
      }
      let x = props.x ? props.x : "center";
      let y = props.y ? props.y : "bottom";
      const option = {
        grid: {
          top: "12%",
          left: "12%",
          right: "12%",
          bottom: 50,
        },
        legend: {
          orient: "horizontal", //布局方式：  horizontal/vertical
          x: x, // 水平安放位置，默认为全图居中，可选： 'center' ¦ 'left' ¦ 'right'  或 {number}（x坐标，单位px）
          y: y, //垂直安放位置，默认为全图顶端，可选： 'top' ¦ 'bottom' ¦ 'center' 或 {number}（y坐标，单位px）
          itemGap: 5,
          textStyle: {
            // 图例文字大小颜色
            fontSize: 12,
            color: "#333333",
          },
          data: [item.barTitle, item.title],
          itemGap: 5, // 各个item之间的间隔，单位px，默认为10，横向布局时为水平间隔，纵向布局时为纵向间隔
        },
        tooltip: {
          trigger: "axis",
        },
        dataZoom: [
          {
            id: "dataZoom",
            type: "inside",
            xAxisIndex: [0],
            filterMode: "none",
            start: start, //从哪个位置开始，自适应位置变化
            end: 100, //百分比，100的意思是100%
          },
        ],
        xAxis: {
          type: "category",
          boundaryGap: false, // 坐标轴两边是不是留白
          data: item.xAxisData,
          axisLine: {
            //坐标系
            show: true,
            lineStyle: {
              //x坐标系字体样式
              color: "#E8E8E8",
              width: 0.5,
            },
          },
          axisLabel: {
            interval: 0, //0代表显示所有x轴标签显示,1不显示全
            color: "grey", //x轴字体颜色
          },
          axisTick: {
            // 刻度线
            show: false,
          },
        },
        yAxis: {
          show: false,
          type: "value",
          axisLabel: {
            //字体
            color: "grey",
          },
          axisLine: {
            //y轴线
            show: true,
            lineStyle: {
              color: "#BEBEBE",
            },
          },
          axisTick: {
            //y刻度线
            show: false,
          },
          splitLine: {
            // 背景线 分割线
            show: true,
            lineStyle: {
              type: "dashed",
              color: "#F5F5F5",
            },
          },
        },
        series: [
          {
            name: item.title,
            data: item.yAxisData,
            type: "line",
            smooth: true, //显示平滑曲线
            label: {
              show: true,
              position: "top",
              textStyle: {
                //主标题文本样式{"fontSize": 18,"fontWeight": "bolder","color": "#333"}
                fontSize: 14,
                color: "#000",
                fontWeight: "bloder",
              },
            },
            lineStyle: {
              color: item.lineColor, //折线颜色
            },
            itemStyle: {
              //折线点颜色
              normal: {
                color: item.lineColor,
              },
            },
          },
          {
            name: item.barTitle,
            type: "bar",
            barWidth: 16,
            data: item.barYData,
            itemStyle: {
              normal: {
                color: item.barColor,
                barBorderRadius: [4, 4, 0, 0],
              },
            },
          },
        ],
      };
      let myChart = echarts.init(
        document.getElementById("customerChart" + state.index)
      );
      myChart.setOption(option);
      //监听窗口的变化，不想屏幕自适应可以不写
      window.addEventListener("resize", function () {
        myChart.resize();
      });
    }
    onMounted(() => {});
    return {
      ...toRefs(state),
    };
  },
};
</script>
<style lang="scss" scoped>
.chart {
  width: 100%;
  padding: 10px 0 2px;

  .title {
    color: #666;
    padding-left: 10px;
    display: flex;
    align-items: center;
    &::before {
      content: "";
      display: block;
      width: 15px;
      height: 30px;
      background: #3eb3f8;
      margin-right: 6px;
    }
  }
  div {
    text-align: center;
    color: #666;
    font-size: 14px;
  }
  .wrap {
    width: 100%;
    height: 180px;
  }
}
</style>
